A panoramic-view sauna overlooking the forest of Tsumagoi, and the soothing tea bath
Shizuoka Kakegawa City
"Kakegawa Tsumagoi Onsen Shinrin no Yu" is a hot spring facility surrounded by lush forest, located within Tsumagoi Resort Sai no Sato in Kakegawa City. It features the men’s and women’s baths, which alternate daily, called "Soto no Yu" and "Uchi no Yu," each offering a sauna with a different atmosphere. In particular, the panoramic-view sauna in "Soto no Yu" is a large unit that accommodates 30 people, with a big window overlooking the forest and pond. The cold plunge bath is also spacious, and the outdoor air bath while listening to the sounds of the forest is pure bliss. Another highlight is the local tea bath unique to Kakegawa, along with the naturally sourced hot spring water, which is highly effective for moisturizing the skin.
TypeNatural Hot Spring
A sodium chloride hot spring that bubbles up within the grounds of Tsumagoi Resort Sai no Sato. Rich in salt, it is cherished as a heat-retaining hot spring with excellent moisturizing and warming effects. With a smooth, gentle texture, it leaves your body warm and comfortable long after bathing. You can also enjoy unique baths that make use of local specialties, such as the indoor tea bath.
Sauna TypeDry Sauna
Stove Typeconvection
Capacity30people
A spacious three-tier sauna room. Large windows are installed, making the panoramic view the biggest attraction, as you can enjoy the rich forests and pond scenery of Tsumagoi while sweating. The dry heat from the retractable heater feels pleasant, and with classical background music playing, it is a luxurious space where you can forget everyday life and relax both body and mind.
Sauna TypeDry Sauna
Stove Typeconvection
Capacity12people
A slightly compact yet open-feeling sauna room installed in the indoor bath area. Here too, you can take in the greenery of the forest through the windows and sweat at your own pace in a calm atmosphere. The three-tier benches let you adjust the heat to your preference by choosing your seat height, making it a meditative sauna time that allows you to feel one with nature.
Water Qualitytap
Capacity10people
A spacious cold plunge bath that Shinrin no Yu is proud of. It is located right near the sauna room, allowing you to gently cool your overheated body while enjoying the forest atmosphere. With just the right depth, the cool-down in this open space is incredibly refreshing. Access to the outdoor air bath area after the cold plunge is excellent, guiding you toward totonou while feeling the forest breeze.
Closed Days: None
〒436-0011 2000 Mansui, Kakegawa City, Shizuoka Prefecture
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more
A panoramic-view sauna overlooking the forest of Tsumagoi, and the soothing tea bath
Shizuoka Kakegawa City
"Kakegawa Tsumagoi Onsen Shinrin no Yu" is a hot spring facility surrounded by lush forest, located within Tsumagoi Resort Sai no Sato in Kakegawa City. It features the men’s and women’s baths, which alternate daily, called "Soto no Yu" and "Uchi no Yu," each offering a sauna with a different atmosphere. In particular, the panoramic-view sauna in "Soto no Yu" is a large unit that accommodates 30 people, with a big window overlooking the forest and pond. The cold plunge bath is also spacious, and the outdoor air bath while listening to the sounds of the forest is pure bliss. Another highlight is the local tea bath unique to Kakegawa, along with the naturally sourced hot spring water, which is highly effective for moisturizing the skin.
TypeNatural Hot Spring
A sodium chloride hot spring that bubbles up within the grounds of Tsumagoi Resort Sai no Sato. Rich in salt, it is cherished as a heat-retaining hot spring with excellent moisturizing and warming effects. With a smooth, gentle texture, it leaves your body warm and comfortable long after bathing. You can also enjoy unique baths that make use of local specialties, such as the indoor tea bath.
Sauna TypeDry Sauna
Stove Typeconvection
Capacity30people
A spacious three-tier sauna room. Large windows are installed, making the panoramic view the biggest attraction, as you can enjoy the rich forests and pond scenery of Tsumagoi while sweating. The dry heat from the retractable heater feels pleasant, and with classical background music playing, it is a luxurious space where you can forget everyday life and relax both body and mind.
Sauna TypeDry Sauna
Stove Typeconvection
Capacity12people
A slightly compact yet open-feeling sauna room installed in the indoor bath area. Here too, you can take in the greenery of the forest through the windows and sweat at your own pace in a calm atmosphere. The three-tier benches let you adjust the heat to your preference by choosing your seat height, making it a meditative sauna time that allows you to feel one with nature.
Water Qualitytap
Capacity10people
A spacious cold plunge bath that Shinrin no Yu is proud of. It is located right near the sauna room, allowing you to gently cool your overheated body while enjoying the forest atmosphere. With just the right depth, the cool-down in this open space is incredibly refreshing. Access to the outdoor air bath area after the cold plunge is excellent, guiding you toward totonou while feeling the forest breeze.
Closed Days: None
〒436-0011 2000 Mansui, Kakegawa City, Shizuoka Prefecture
Gender Access
Gender Separated
Curated by an expert who visits onsen and sauna facilities every day and has explored 300+ locations — only facilities confirmed to be truly exceptional are featured.
Learn more